In a medium bowl, add tomatoes, olives, capers, lemon juice, salt, pepper, and parsley flakes, Combine and set aside. In a large skillet, heat 1 tablespoon of the olive oil over medium-high heat. Sauté onions and garlic for a 2 minutes. Stir in tomato mixture and heat for 1 minute. Add white wine and heat to boiling; reduce heat and a simmer until some of the liquid has reduced (by about 1/4). Transfer mixture to a bowl. Using the same skillet, heat the remaining 1 tablespoon of olive oil over medium high heat. Dust each side of the flounder with flour and season with salt and pepper. Place flounder in the skillet and cook for 2 minutes on each side. Return tomato mixture to the skillet, add basil, and cook until heated through. Enjoy! If you'd like a printer-friendly version of this recipe, Click Here.